Cosmos atrosanguineus 'Choca Mocha' Asteraceae
Black Cosmos, Black Dahlia
Source of plant
This selection is more compact and flowers summer to fall. Maximum flowers in areas with warm days and cool nights. Grow in regular to rich well-drained soils; avoid wet clay soils as they may rot in such conditions. Develops a tuberose root that can be overwintered like dahlias in damp sand in a cool area. Keeping over will result in more robust plants the following years.
USDA Hardiness Zone